Tolbert lanston



(No Model.)

-' T. LANSTON.

PRODUGING J'USTIFIED LINES 0F. TYPE No. 364,523.- Patented June l'7, 1887.

affhele types are not perclahble to the A eye.

The valuation' inthe width ofthe aies UNITED STATES PATENT OFFICE.

TOLBERT LANSTON, OF VVASHING-TON, DISTRICT OF COLUMBIA, ASSIGNOR, BY DIRECT AND MESN E ASSIGNMENTS, TO THE LANSTON TYPE MACHINE COMPANY, OF SAME PLACE.

-Paoouelnel JusT-IFIED LINES oF TYPE.

SPECIFICATION' forming part of Letters Patent No. 364,523. dated June 7, 1887. Y

Original application filed September 30, 1885. Serial No. 178,671. Divided and this application filed July 3, 1886. Serial No. 207,158.

' (No modell.)

To all whom, t may concern:

Beit known that I, TOLBERT LANsToN, of Washington, in the District of Columbia, have invented certain new and useful Improvements in the Art of Forming Justitied Lines of Types and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, and to the iigures and letters of reference marked thereon.

This case is a division of an application tiled by me September 30, 1885, N o. 178,671. In another division of said application-z'- e., No. 207,156-iiled contemporaneously herewith, I have shown and described certain improvements in the art of producing justified lines and forms of types, and in illustration thereof have disclosed several modes of carrying my said invention into practice. One of said modes forms the subject-matter of the present mapplication, and, broadly stated, consists in first ascertain ing the amount of space required to beilled up by justification, if types of normal or standard lsize were used,and then forming' successively the types that are to compose the line, the printing-types of normal width and the spacetypes of a Width varying in proportion to the ascertained amount of space required to be lled out or absorbed by justification.

Referring to the accompanying drawings, Figure 1 is a diagrammatic view representing an unj ustiiied line of types of normal or standard dimensions, upon an enlarged scale, the outlines only of the types being shown; Fig. 2, a similar view representing a j ustified line of the same characters made in accordance with my invention. Fig. 3 is a View of a portion of a form of types constructed in accordance with my invention.

Similar letters and numbers in the several figures indicate corresponding parts.

Referring particularly to Fig. 1, let the interval between the points lettered a and c represent the length of lthe proposed line of composition, assumed to be thewidth ofthe column, the interval between a and b the space which would be occupied by the unjustified line of types of normal or standard size, and the interval between b and c the space to be filled 5e by justification. Having thus ascertained the amount of space to be absorbed in justifying the given line, and the number of spacetypes in said unjustified line, I proceed to form successivel y the series of types, making each printing-type of normal size and the spacetypes of a width varying in proportion to the ascertained amount of space required to be filled out or absorbed. This is illustratedin Fig. 2, wherein 2, 4, 6, 8, 13, 16, and 21 represent (o space-types, which are made of a width increased above the corresponding -normal types shown in Fig. 1, an amount equal to the space b c divided by the number ofspaee-types employed-z'. e., seven; or, in other words, 65 each of said spacetypcs is increased oneseventh of the space b c. This mode of procedure is followed in the production of each line of matter, the result being that the types made for each line will exactly fill that line, irre- 7o spective of the character of the composition.

I have not thought it necessary to describe herein any special mechanism for carrying my invention into effect. A competent mechanism for the purpose is, however, described in my before-mentioned application,No. 178,671.

Having thus described my inventiomwhat I claim as new is The hereinbefore-deseribed improvement in the art of formingjustified lines of type, con- 8o sisting in first ascertaining the amount of space required to be filled up by j ustificatiomif types of normal orstandard size were used, and then forming successively the types that are to compose the line, the printing-types of normal 8 5 width and the spacetypes of a width varying in proportion to the ascertained amount of space required to be filled out or absorbed by justification.

i TOLBERT LANSTON. 

